docs and default env file updated

.env.example

@@ -1,6 +1,7 @@
 INPUT_WAKATIME_API_KEY=YOUR_WAKATIME_API_KEY
 INPUT_GH_TOKEN=YOUR_GITHUB_TOKEN_KEY
 INPUT_PUSH_BRANCH_NAME=main
+INPUT_PULL_BRANCH_NAME=main
 INPUT_SECTION_NAME=waka
 INPUT_SHOW_TIMEZONE=True
 INPUT_SHOW_PROJECTS=True

sources/manager_github.py

@@ -77,9 +77,10 @@ class GitHubManager:
     @staticmethod
     def branch(requested_branch: str) -> str:
         """
-        Gets name of branch to commit to specified by environmental variables.
-        It is the default branch (regularly, 'main' or 'master') or a branch specified by user.
+        Gets requested branch name or the default branch name if requested branch wasn't found.
+        The default branch name is regularly, 'main' or 'master'.
 
+        :param requested_branch: Requested branch name.
         :returns: Commit author.
         """
         return GitHubManager.REMOTE.default_branch if requested_branch == "" else requested_branch